baber/WOPTO huggingface dataset:
Patent CA-1277133-C (CA)
Title: Compounds for ferroelectric liquid crystal devices
Inventor: CHAN LAWRENCE K M
IPC: C09K19/02
Filed: 1985-11-12
Granted: 1990-12-04
Abstract: ABSTRACT OF THE DISCLOSURE         Ferroelectric smectic liquid crystal mixtures are provided consisting of two constituents; a smectic host and another containing a chiral compound in which rotation of the chiral centre relative to the molecular core is sterically hindered, so that the chiral compound induces a high Ps in the mixture. A preferred class of chiral compounds is those derived from naturally occurring compounds with chiral groups, especially .alpha.-hydroxycarboxylic acids, amino acids and terpenoids, e.g. with chiral groups;                     The chiral group is incorporated into a compound containing a mesogenic combination of groups, e.g., with chains of cyclic groups and some mesogenic combinations are described.
Patent CA-1290753-C (CA)
Title: Tetrapyrrole therapeutic agents
Inventor: BOMMER JERRY C
IPC: A61P43/00
Filed: 1986-04-30
Granted: 1991-10-15
Abstract: ABSTRACT This invention relates to new fluorescent mono, di- or polyamide of an aminomonocarboxylic acid and a tetrapyrrole containing at least three carboxy groups of the structure: wherein Z is the amino acid residue and X is the tetra-pyrrole residue and "n" is an integer from 1 to 4 inclusive.
Patent CA-1310473-C (CA)
Title: Method of removing acid gas pollutants from flue gases and the like
Inventor: SCOTT DONALD S
IPC: B01D53/60
Filed: 1986-06-03
Granted: 1992-11-24
Abstract: ABSTRACT A method of removing acid gas pollutants from flue gases and the like involves contacting the gas with a coal-water slurry, said coal being a type that has exchangeable cations.  The exchangeable cations are exchanged with hydrogen ions and form salts with the sulfur oxides and nitrogen oxides in the flue gas, thereby removing substantially all of the pollutants from the flue gas.
Patent CA-1285091-C (CA)
Inventor: HALLGREN JOHN E
IPC: C08L71/12
Filed: 1986-06-20
Granted: 1991-06-18
Abstract: MIXTURES INCLUDING POLYPHENYLENE ETHERS AND LACTAMS AND RESINOUS  COMPOSITIONS PREPARED THEREFROM                     ABSTRACT OF THE DISCLOSURE           Mixtures of polyphenylene ethers, lactams such as .epsilon.-caprolactam and lactam polymerization catalysts, prefer-ably basic reagents, may be polymerized.  There is prefer-ably also present a lactam polymerization promoter, especi-ally a functionalized polyphenylene ether.  Polymerization produces resinous compositions including phenylene ether-amide copolymers, especially block and/or graft copolymers. Said resinous compositions may be molded into articles hav-ing a number of advantageous properties.
Patent CA-1276761-C (CA)
Inventor: RAMBOSEK GEORGE M
IPC: D04H1/42
Filed: 1986-11-13
Granted: 1990-11-27
Abstract: Abstract of the Disclosure A continuous, bicomponent, non-vitreous ceramic fiber comprises components existing in a longitudinal side by side relationship wherein each of the components is derived from a different fiber-forming precursor liquid. Firing the bicomponent fiber in a reducing atmosphere can provide ceramic/cermet or cermet/cermet fibers wherein each cermet component has a graded composition.
Patent CA-1281968-C (CA)
Inventor: NERACHER ARNOLD
IPC: A61M25/00
Filed: 1986-12-31
Granted: 1991-03-26
Abstract: Le dispositif hydrodynamique est destiné à éliminer un dépôt obstruant partiellement ou totalement un vaisseau, par exemple une artère, du corps humain au moyen d'un jet supersonique. Ce dispositif est constitué par un cathéter comprenant un tuyau souple destiné à être introduit dans le vaisseau obstrué, par un conduit métallique souple s'étendant dans ce tuyau, muni à une extrémité d'une buse destinée à être amenée à proximité du dépôt et relié à son autre extrémité à une source de liquide sous pression. L'orifice de la buse présente un diamètre compris entre 20 et 70 .mu. et la pression du liquide dans la buse est au minimum de 6.107 Pa de manière que le jet pénètre dans le liquide contenu dans le vaisseau à une vitesse d'au moins 300 m/s.
Patent CA-1277696-C (CA)
Title: Bearing sleeves
Inventor: ARLOTT COLIN
IPC: E21B4/00
Filed: 1987-03-17
Granted: 1990-12-11
Abstract: S P E C I F I C A T I O N               "Bearing Sleeves"     ABSTRACT OF THE DISCLOSURE     In order to support a mud-driven impeller of a down-hole turbogenerator in such a manner as to provide long bearing service life in the hostile conditions down-hole, a bearing sleeve is provided which comprises an outer shell of marine brass and an inner lining of nitrile rubber bonded to the inside surface of the shell.  The lining extends axially beyond the end of the shell to form a portion proud of the end of the shell and turned over the end of the shell.  This portion comprises radial lands separated by radial grooves, and the radial lands define axial bearing surfaces for cooperating with an axial bearing surface of a bearing member which the bearing sleeve surrounds in use.
Patent CA-1291561-C (CA)
Inventor: DAVIE NEIL R
IPC: H03M7/14
Filed: 1987-04-29
Granted: 1991-10-29
Abstract: ASYMMETRIC RLL CODING     ABSTRACT OF THE DISCLOSURE    Method  and  apparatus  for  generating  asymmetrically constrained  run-length-limited   encoded   data   from   a serialized  binary  string  of 1's  and  0's.   The  method comprises the steps of encoding the input data bits using  a run-length-limited-encoding constraint  in the  form of M/N (d,k), where M is  the number of input  data bits, N is  the number of output bits associated therewith, d is the minimum number of 0 data bits between  adjacent data bit 1's and  k is the maximum number of  0 data bits between adjacent  1's; and adjusting the  values of  d and  k, so as to  alternate between a value d1 and d2 and a value k1 and k2 respectively where d1 ? d2, The apparatus comprises means for generating N  output data  bits  in  response  to  M  input  data  bits and  for generating data bit 0's  between data bit  1's based upon  a run-length-limited  d,k  coding  constraint  and  means  for adjusting d  and k  as  used by  said means  for  generating output data bits to alternate between a value d1 and d2  and a value k1 and k2 respectively, where d1 ? d2.      Fractional numerical  values  for  d1  and  d2  can  be employed in the method or apparatus.
Patent CA-1330390-C (CA)
Inventor: HOOTS JOHN E
IPC: C23F11/08
Filed: 1987-05-08
Granted: 1994-06-28
Abstract: ABSTRACT A method for inhibiting corrosion in industrial cooling waters which contain hardness and a pH of at least 6.5, by dosing the water with a composition which comprises a water-soluble inorganic phosphate capable of inhibiting corrosion in an aqueous alkaline environment and a hydrocarbon polymer containing an N-substituted acrylamide polymers with an amide structure as follows:                          where R1 is a hydrogen or an alkyl, R2 is hydrogen or methyl, and R is alkylene or phenylene, and X is sulfonate, (poly)hydroxyl, (poly)carboxyl or carbonyl, and combinations thereof; or con-taining derivatized maleic anhydride homo-, co- and terpolymers having N-substituted maleamic acid units, N-substituted male-imide units and maleic acid (and salts) units having a structure as follows:                    where R1, R2 and R3 are each independently chosen from the group consisting of hydrogen, hydroxyl, carboxyalkyl, carboxyamide, phenyl, substituted phenyl, linear or branched alkyl of from one to ten carbon atoms, and substituted alkyl of from one to ten carbon atoms, where the substituent is phosphonic acid; phos-phinic acid; phosphate ester; sulfonic acid; sulfate ester, carboxyamide, (poly)carboxy and (poly)hydroxy, alkoxy and car-boxylate ester groups; and combinations thereof; and M+ may be H+, alkali metal ions, alkaline earth metal ions, ammonium ions and wherein:  n = total moles of derivatized and underivatized maleic units in the polymer and is an integer in the range from 10 to about 1200; x = mole fraction of maleamic acid (salt) units in the polymer and can vary from 0 to about 1.0; y = mole fraction of maleimide units in the polymer and can vary from 0 to about 0.95; z = mole fraction of maleic acid (salts) units in the polymer and can vary from 0 to about 0.95; and wherein: x + y + z = 1.
Patent CA-1319899-C (CA)
Title: Monoclonal antibodies to fc receptors for immunoglobulin g on human mononuclear phagocytes
Inventor: FANGER MICHAEL W
IPC: A61K35/15
Filed: 1987-07-07
Granted: 1993-07-06
Abstract: ABSTRACT           The invention pertains to monoclonal anti-bodies which are specific for the human high affinity Fc receptor for IgG, the p72 receptor, and which bind to the Fc receptor without being blocked by human IgG.  The antibodies bind specifically, through their antigen combining region and independent of their Fc portion, to human receptor for the Fc portion of IgG.  The antibodies bind to a site on the Fc receptor distinct from the binding site for the Fc region of IgG (ligand) and the antibodies are capable of binding a ligand-occupied receptor.  The anti-Fc receptor antibody according to the invention can be used to produce target-specific effector cells for treatment of cancer, allergies, and infectious and autoimmune diseases.
Patent CA-1285078-C (CA)
Title: Serial data direct memory access system
Inventor: HOLDREN EARL J
IPC: G06F13/14
Filed: 1987-07-13
Granted: 1991-06-18
Abstract: ABSTRACT OF THE DISCLOSURE           Serial data direct memory access apparatus includes a receiver circuit responsive to incoming serial data clocked at a chosen rate.  The apparatus also includes computer controlled bus system with expandable memory.  The bus system clocking is at a higher rate than the rate of the incoming data.  The incoming serial data is converted to parallel data words and addresses are formed and assigned to each data word.  Receiver circuits also provide means for transferring the converted parallel data to the assigned address locations of memory in the bus system.  When the receiver circuit is accessing memory, the bus system computer which normally manages the memory is put to sleep.
Patent CA-1289143-C (CA)
Title: Tetracyclic indole derivatives
Inventor: TEMPERILLI ALDEMIO
IPC: C07D487/06
Filed: 1987-07-21
Granted: 1991-09-17
Abstract: ABSTRACT            TITLE : NEW-TETRACYCLIC INDOLE DERIVATIVES.            Compounds of the formula I :       I   wherein R1 =H, CH3;  m = 0,1; R2 = R3 = H or R2, R3 = bond, R4 = C1-C4 hydrocarbon, n = 1 or 2  and their pharmaceutically acceptable salts are  antihypertensive agents. Their preparation and pharmaceutical compositions containing them are also described.
Patent CA-1303081-C (CA)
Title: Film transport apparatus
Inventor: MAXWELL IAN
IPC: G03B1/48
Filed: 1987-10-19
Granted: 1992-06-09
Abstract: ROGERS, BERESKIN & PARR                  Title: FILM TRANSPORT APPARATUS                    Inventor: IAN MAXWELL                     ABSTRACT OF THE DISCLOSURE         A film transport mechanism for an optical printer in  which  the  film  is  positively  clamped  and  laterally tensioned at the position of the aperture between each film advance step, so that the film lies absolutely flat in the focal  plane  of  the lens  system  of  the  printer  during exposure. This is achieved by providing registration pins and a pressure pad at one side of the film and a curved blade at the other side that move towards and clamp the film. The blade progressively tensions the film laterally against the pressure pad and registration pins.
Patent CA-1291944-C (CA)
Inventor: HOLMES BILLY G
IPC: E21B43/24
Filed: 1987-12-02
Granted: 1991-11-12
Abstract: ABSTRACT OF THE DISCLOSURE        A steam flooding method for recovering oil from an underground formation penetrated by an injection and at least one production well is modified by initially lowering the permeability of the lower vertical portion of the formation, e.g., by plugging thereof with gravel sand pack, capped by plaster of paris or cement, thereafter continuing to inject the steam into the injection well and maintaining high level of production from the production well until thermal breakthrough is achieved in the production well.          Subsequently, the initial permeability of the lower vertical portion of the formation is restored, e.g., by removing the gravel sand pack, and oil is recovered from the production well.  In a preferred embodiment, the permeability of substantially the entire initial completed interval of the production well is decreased in the aforementioned manner, the well is recompleted higher in the formation and steam is continuously injected into the injection well   Subsequently, the secondary completed interval is plugged, and the permeability of the primary completed interval is restored substantially to its original level.  The method of the invention decreases the time necessary for thermal breakthrough in the production well, thereby accelerating thermal communication between the injection and the production wells and improving vertical sweep efficiency of the cyclic steam or steam flooding methods of heavy oil recovery.
Patent CA-1295318-C (CA)
Title: Lubricant composition
Inventor: SCHWIND JAMES J
IPC: C10M169/04
Filed: 1987-12-18
Granted: 1992-02-04
Abstract: ABSTRACT      Lubricants  having  excellent  static  and  dynamic frictional  characteristics  are  described  herein.    The fluids are particularly useful in reducing double detente and clashing during manual transmission shifting.
Patent CA-1300672-C (CA)
Inventor: ROCK ERICH
IPC: A47B88/00
Filed: 1988-01-07
Granted: 1992-05-12
Abstract: ABSTRACT          A fitting for fastening the rail member of a drawer to a rear wall of the drawer, comprising a supporting part fastenable to the rear wall. The rear end of the of the rail member is held in the supporting part. A fastening member which is engageable in the supporting part is screwable into the rail member. The fastening member is clampable to the supporting part by means of a clamping screw.
Patent CA-1285022-C (CA)
Title: Filter unit with electrochemical capacitors for a static power converter
Inventor: FIORINA JEAN-NOEL
IPC: H02M1/14
Filed: 1988-03-07
Granted: 1991-06-18
Abstract: ABSTRACT            FILTER UNIT WITH ELECTROCHEMICAL CAPACITORS FOR A STATIC POWER          CONVERTER            A filter unit for a static converter, notably an inverter, comprises at least one module having four capacitors arranged on a support with a square base in two groups connected in parallel to the power supply terminals of opposite polarities, each group comprising two series-mounted capacitors.  The voltage at the mid-points of the two groups is fixed by a voltage divider comprising two balancing resistors, and an auxiliary impedance formed by the intermediate part of the connecting device. The support base is provided with coupling means to enable modular assembly by associating several modules identical on the four sides of the base.
Patent CA-1312400-C (CA)
Title: Polymers which form gels at low concentrations in water
Inventor: CARSON JAMES E
IPC: C08L71/02
Filed: 1988-03-14
Granted: 1993-01-05
Abstract: ABSTRACT OF THE DISCLOSURE:          This  invention  relates  to  an  aqueous  gel particularly useful in the formation of topically applied cosmetic and pharmaceutical compositions, which comprises a capped polyether polymer and a surfactant.   The capped polyether polymers used in the gel can be obtained by modifying a conventional polyether polyol with an alpha-olefin epoxide having an average of about 20 to 45 carbon atoms or mixtures thereof.
Patent CA-1317560-C (CA)
Title: Method for the precipitation of mercury by electrolysis
Inventor: DIETZ WOLFGANG
IPC: C25C7/02
Filed: 1988-03-17
Granted: 1993-05-11
Abstract: ABSTRACT OF THE DISCLOSURE           A method is described for the precipitation by electrolysis  of  metallic  mercury  from  an  electrolyte containing Hg2Cl2 in suspension by cathodic reduction.  The Hg2Cl2 reacts with chlorine evolved during electrolysis to form HgCl2.  The latter is reduced at the cathode under the influence of chlorine to form liquid mercury.
Patent CA-1299875-C (CA)
Title: Rail grinding machine
Inventor: BULL TIMOTHY B H
IPC: E01B31/17
Filed: 1988-05-04
Granted: 1992-05-05
Abstract: RAILROAD GRINDING MACHINE       ABSTRACT         A rail grinding machine especially designed for grinding railroad track rails at railroad track switches and road crossings.          The grinding machine includes an articulated grinding module supporting undercarriage suspended from the grinding machine main frame.  The undercarriage includes a unique suspension system that allows for lateral shifting and pivoting of the undercarriage independently of the grinding machine main frame.          Grinding operations are controlled by sensing the supply pressure of the constant flow hydraulic fluid used to power the individual grinding modules, and positioning the grinding modules in grinding abutment with the rails as a function of the supply pressure.
Patent CA-1302243-C (CA)
Title: Insect-repellent camouflage composition
Inventor: MELNIK JOHN
IPC: A01N37/22
Filed: 1988-07-07
Granted: 1992-06-02
Abstract: Abstract of the Disclosure An insect repellent camouflage composition for application to the skin including N,N-diethyl-m-toluamide and camouflage pigment to provide both camouflage and insect repellence by a single application without interference with either function.  Some embodiments include a skin-compatible vehicle miscible with the pigment and toluamide, preferably including water, skin oil(s), and emulsifier(s).
Patent CA-1318101-C (CA)
Title: Wall panel arrangement
Inventor: GLOCKENSTEIN KARL
IPC: E04B2/82
Filed: 1988-07-26
Granted: 1993-05-25
Abstract: ABSTRACT           The  present  invention  relates  to a wall panel  arrangement  having  one  or more  wall panels comprising a bearing frame  constructed of  U  or  C profiles.    On both sides of this frame there are covering sheets and between these sheets there is a filling  of   thermal  and/or   acoustic  insulation material.   One or more bracing devices are arranged on  one  or  more  bearing  frame  edges  serving  to compensate for dimensional differences  between  the wall panel and the building structure receiving such wall panel.   One or more parts of the bearing frame can be or is capable of being recessed relative to one or more edges of one or more covering sheets. The primary  distinguishing  feature  of  the present invention is a bearing part,  which,  for the purpose of securing the wall panel to the building structure and,  if required, connecting adjacent wall panels to each other,  extends or is capable of being guided only into the space  existing between  the covering sheets.   Such bearing part furthermore comprises a U or C profile having shanks that extend or that can be introduced only into the above-mentioned space and that are, furthermore, bent at least at the ends, and advantageously to approximately half the height of such shank,   toward the median of the profile and enclosing with the median plane of the profile an acute angle,  whereby the web of such U or C profile features securing means for the purpose of anchoring such bearing part and thus also the wall panel to the building structure,   and whereby the bearing frame comprises, in the edge zone facing such bearing part, a U or C profile separated from the aforementioned bearing part and arranged only inside the covering sheets,  such U or C profile being open toward the bearing part,   the distance  between the  shanks of which U or C profile being greater than the distance separating the outer surfaces of the shanks of the bearing part, and wherein the bearing frame features, in the wall panel sides or zones distant from the bearing part,  U or C profiles having an outwardly-facing web and thus an inwardly-opening profile,  and being arranged only inside the covering sheets.
Patent CA-1279732-C (CA)
Title: Electron beam direct drawing device
Inventor: TOBUSE HIROAKI
IPC: H01J37/302
Filed: 1988-07-29
Granted: 1991-01-29
Abstract: ABSTRACT OF THE DISCLOSURE           An electron beam direct drawing device for use in manufaturing a printed circuit board having a photoresist thereon according to a drawing pattern information obtained by a computer aided printed circuit board pattern design, comprises means for dividing the drawing pattern information over a whole area of the printed circuit board into a plural-ity of fields each capable of being scanned by electron beam and for re-editing drawing patterns of the rspective fields, means for storing the divided and then re-edited drawing pattern information, means for generating a first control signal for reading out the stored drawing pattern information sequentially and performing a main deflection of electron beam by means of a main deflector and means for generating a second control signal for deriving, from the stored drawing pattern information, information assigning an orientation of a pattern to be drawn and a scan width of a sub-deflection and for performing a predetermined sub-deflection scanning by means of a sub-deflector, whereby electron beam scans the printed circuit board under a control of a combination of the main deflection and the sub-deflection. A clock gene-rator capable of producing a plurality of clock signals each corresponding to a specific line width of the pattern is provided to expose the line with electron beam of optimum dose.
Patent CA-1304399-C (CA)
Title: Procede de purification et d'isolement de condensats d'isocyanates par extraction au co _liquide ou supercritique
Inventor: BLIND ANDRE
IPC: C07C263/20
Filed: 1988-09-14
Granted: 1992-06-30
Abstract: BREVET D'INVENTION PROCEDE DE PURIFICATION ET D'ISOLEMENT DE CONDENSATS D'ISOCYANATES PAR EXTRACTION AU CO2 LIQUIDE OU SUPERCRITIQUE Titulaire : RHONE-POULENC CHIMIE Inventeurs : André BLIND Gérard COLLAS Jean ROBIN Ferenc SAGI DU CONTENU TECHNIQUE DE L'INVENTION La présente invention concerne la purification et l'isolement de condensats d'isocyanates à groupes NCO libres obtenus à partir de diou polyisocyanates aromatiques en excès et d'au moins un composé antagoniste possédant au moins deux groupements réactifs vis-à-vis des groupes NCO, ledit composé antagoniste pouvant être un diisocyanate aromatique. Elle comprend essentiellement le traitement par un gaz inerte à l'état liquide ou supercritique desdits condensats bruts et à groupes NCO libres. On obtient ainsi un polyisocyanate contenant une très faible quantité de diisocyanate aromatique libre.
Patent CA-1305017-C (CA)
Inventor: KOYAMA HIDEO
IPC: B60W30/18
Filed: 1988-10-19
Granted: 1992-07-14
Abstract: Abstract A hydraulic continuously variable speed transmission with  a direct  clutch  valve  comprises a hydraulic  pump,  a  hydraulic motor,  a hydraulic closed circuit for  hydraulically  connecting the  both, a direct clutch valve placed in the closed circuit,  a speed reduction ratio control actuator, and a direct clutch valve controlling  device  for controlling operations  of  said  direct clutch valve to block the closed circuit when the speed reduction ratio  becomes  substantially  "1".   The  direct  clutch   valve controlling  device  maintains direct connecting  state  when  an actual engine speed is higher than a direct clutch  disconnecting reference   engine  speed  at  the speed  reduction   ratio   of approximately  "1". Then, the direct clutch valve control  device releases  the blocking of the closed circuit by the direct  valve when  a  drop of the actual engine speed from the  direct  clutch disconnecting  reference  engine speed  exceeds  a  predetermined amount corresponding to the vehicle speed.
Patent CA-1312794-C (CA)
Title: Surface treatment of pet film
Inventor: VALLARINO ANGELO
IPC: C08J7/04
Filed: 1988-10-26
Granted: 1993-01-19
Abstract: ABSTRACT OF THE DISCLOSURE           Antistatic protection can be provided to a substrate by providing two coatings or layers to the substrate.  The first layer is a blend of two different polymers or copolymers that crosslink within the coating and the second layer is a subbing layer.  This coated substrate is particularly useful for photographic media.